Description and Operation
The electronic accelerator control (EA) module (N4/1) controls the cruise control, idle speed functions and electronic engine
control (electronic accelerator pedal) for ABS/ASR to ensure smooth and consistent operation regardless of engine temperature
and load. The module is located in the module box, F23 and is color coded ORANGE.

When the ignition switch is in the ON position, the idle speed control function is in operation. The position of the throttle
valve for idle speed and ABS/ASR is determined by this module via the nominal value of the accelerator pedal input
potentiometer in the electronic accelerator actuator M16/1. The actual value of the potentiometer signals the position of
the throttle valve. The EA module compares the signals and specifies the position of the throttle valve via the output
signal. This signal is used by the electronic accelerator actuator to adjust the valve.

Before starting the engine, the throttle valve position is determined by the engine temperature. Once the engine is running,
the idle speed and ABS/ASR are controlled by the EA module which provides a constant idle RPM and limits the maximum torque
output to the drive wheels. For torque output regulation via ABS/ASR, the control module uses the input signal from the
ABS/ASR control module.

The warm-up control is effective at all engine temperatures. After each start-up (accelerator pedal in idle position), the
engine increases the idle speed for appox. 20 seconds. Between 68 deg F and 86 deg F, the engine speed is 800 - 900 RPM.

When the A/C compressor is turned on, the throttle valve opening is increased just before the A/C compressor engages. This
compensates for the A/C compressor load and keeps the engine idle speed at a nearly constant RPM.